WO2018202027A1

WO2018202027A1 - Method and apparatus for determining subcarrier spacing type

Info

Publication number: WO2018202027A1
Application number: PCT/CN2018/085252
Authority: WO
Inventors: 夏金环
Original assignee: 华为技术有限公司
Priority date: 2017-05-02
Filing date: 2018-05-02
Publication date: 2018-11-08
Also published as: CN108810991A; CN108810991B

Abstract

The present invention relates to the technical field of mobile communications, and in particular, to a technique for determining a subcarrier spacing type. In the method for determining a subcarrier spacing type, a terminal device receives configuration information sent by a network device, the configuration information comprising at least one downlink control channel resource set, the downlink control channel resource set being used to send a downlink control channel, the downlink control channel being used to carry downlink control information, and the at least one downlink control channel resource set being associated with at least two subcarrier spacing types, or the configuration information comprising at least two downlink control channel resource sets, each of which is associated with at least one subcarrier spacing type; and the terminal device detects the downlink control channel to obtain a first subcarrier spacing type associated with the downlink control channel resource set in which the downlink control channel is located. Through the solution provided by the present application, the terminal device can dynamically determine a subcarrier spacing type.

Description

Method and device for determining subcarrier spacing type

This application claims the priority of the Chinese Patent Application filed on May 2, 2017, the Chinese Patent Application No. PCT Application No. In the application.

Technical field

The present invention relates to the field of mobile communications, and more particularly to a subcarrier spacing type in a wireless communication system.

Background technique

In a wireless communication system, different frequency ranges within a system bandwidth of a serving cell support different subcarrier spacing types, and the network device notifies the terminal device of the frequency range information of the serving cell through the system message and is supported in the frequency range. The subcarrier spacing type information in the time domain, the subcarrier spacing type in different time ranges in the same frequency range may be changed. When the subcarrier spacing type changes, the network device passes the updated system message to the terminal again. The device notifies the changed subcarrier spacing type.

The information of the sub-carrier interval type is notified by the network device to the terminal device through the system message, but the update speed of the system message is relatively slow, so that the terminal device cannot obtain the changed sub-carrier spacing type in time, and thus cannot meet the delay of the terminal device service. Claim.

Summary of the invention

A method and apparatus for determining a seed carrier spacing type is described herein to enable dynamic determination of subcarrier spacing types.

In one aspect, an embodiment of the present application provides a method for determining a subcarrier spacing type. The terminal device receives the first configuration information that is sent by the network device, where the at least one downlink control channel resource set is associated with at least two subcarrier spacing types; or the first configuration information includes at least two downlink control channel resource sets. Each of the downlink control channel resource sets is associated with at least one subcarrier spacing type, where the first configuration information includes at least one downlink control channel resource set, and the downlink control channel resource set is used to send a downlink control channel, The downlink control channel is configured to carry downlink control information; the terminal device detects the downlink control channel, and acquires a first subcarrier spacing type associated with the downlink control channel resource set where the downlink control channel is located. For example, the subcarrier spacing type may be 15 kHz, 30 kHz, 60 kHz, 120 kHz, 240 kHz, and/or 480 kHz, and the like.

In a possible design, after receiving the first configuration information, the terminal device receives the second configuration information sent by the network device, where the second configuration information further includes indication information of the effective time length of the subcarrier spacing type, And instructing the terminal device to perform at least one detection on the second downlink control channel within the effective time length. The second downlink control channel is detected by the terminal device within the effective time length included in the second configuration information, because the detection time of the second downlink control channel is clarified, thereby reducing the number of times of detecting the downlink control channel.

In another possible design, the terminal device determines a second subcarrier spacing type used to receive downlink data and a first sub-sub-device used by the terminal device to detect a downlink control channel in the downlink control channel resource set. The carrier spacing type is the same, the terminal device receives the downlink data by using the second subcarrier spacing type; and/or the terminal device determines the second subcarrier spacing type used by the terminal device to send the uplink data, and the terminal device passes the The first subcarrier spacing type used by the downlink control channel in the downlink control channel resource set is detected to be the same, and the terminal device sends uplink data and/or uplink control information by using the second subcarrier spacing type.

In another possible design, the terminal device acquires the second subcarrier spacing type indication information included in the downlink control information by using the downlink control channel, and uses the second subcarrier spacing type indication information to indicate the second The subcarrier spacing type receives downlink data and/or transmits uplink data and/or uplink control information. For example, when the eMBB service data and the URLLC service data are scheduled by using the downlink control channel of the same subcarrier spacing type, the subcarrier spacing types used by the two service data are different, and the data is further indicated by the solution provided by the embodiment of the present application. The subcarrier spacing type used by the channel, the control channel and the data use different subcarrier spacings, so that the data can adapt to the burst situation of the service in time.

In a second aspect, an embodiment of the present application provides a method for determining a seed carrier interval type, including:

The network device determines the first configuration information, where the first configuration information includes at least one downlink control channel resource set, the downlink control channel resource set is used to send a downlink control channel to the terminal device, and the downlink control channel is used to carry downlink control Information, wherein the at least one downlink control channel resource set is associated with at least two subcarrier spacing types; or the first configuration information includes at least two downlink control channel resource sets, each downlink control channel resource set and at least A subcarrier spacing type is associated, and the network device sends the first configuration information to the terminal device. For example, the subcarrier spacing type may be 15 kHz, 30 kHz, 60 kHz, 120 kHz, 240 kHz, and/or 480 kHz, and the like.

In a possible design, the network device sends the second configuration information to the terminal device, where the second configuration information further includes indication information of the effective time length of the subcarrier spacing type, and is used to indicate that the terminal device is within the effective time. The downlink control channel performs at least one detection. With the solution provided by the embodiment of the present application, the terminal device detects the downlink control channel within the effective time length, thereby reducing the number of times the terminal device detects the downlink control information.

In another possible design, the network device receives uplink data and/or uplink control information that is sent by the terminal device by using a second subcarrier spacing type, and the second carrier type and the network device send the downlink The first subcarrier spacing type used by the control channel is the same; and/or the network device transmits downlink data to the terminal device using the second subcarrier spacing type, the second subcarrier spacing type being sent by the network device The first subcarrier spacing type used by the downlink control channel is the same.

In the foregoing embodiment, in a possible design, the first configuration information further includes reference time period indication information, where the terminal device is instructed to perform the downlink control channel at least once in the reference time period. Detection. With the solution provided by the embodiment of the present application, the terminal device detects the downlink control information in the indicated time, thereby reducing the number of times the terminal device detects the downlink control information.

In the foregoing embodiment, in a possible design, the first configuration information further includes reference subcarrier spacing type indication information, configured to indicate, by the terminal device, the time indicated by the reference subcarrier spacing type The downlink control channel performs at least one detection. Since the reference subcarrier spacing is related to the OFDM symbol length, the time indicated by the subcarrier spacing type can be known according to the subcarrier spacing type. For example, the time indicated by the subcarrier spacing type is the time included in the length of the N OFDM symbols, and the value of N is an integer of 7 or 14. The terminal device detects the downlink control channel in the time indicated by the subcarrier spacing type, thereby reducing the number of times the terminal device detects the downlink control information.

In the above embodiment, in a possible design, the first configuration information includes at least one type of indication information: used to acquire data of an associated schedule in each downlink control channel resource set occupied by the time domain. The indication information of the quantity of resources, such as the number of OFDM symbols occupied by the duration, or the number of slots, or the number of subframes, etc., because the length of the associated data is included in the first configuration information, which can provide flexible scheduling The length of the data is adapted to the burst condition of the service; or the indication information for acquiring the quantity of resources included in the frequency domain of each downlink control channel resource set, for example, may be an indication of the number of physical resource blocks included in the frequency The information may be, for example, the number of resource block groups included in the frequency and the indication information that each resource block group includes several resource blocks; or, for acquiring the resources included in the time domain resources of each downlink control channel resource set. The indication information of the quantity may be, for example, the number of OFDM symbols occupied by each downlink control channel resource set in time; or, The indication information of the frequency range in the frequency band of the system to which the downlink control channel resource is located is, for example, the resource block or the resource block group included in the frequency domain of each downlink control channel resource set in the system bandwidth. The indication information such as the range of the index or the index; or the indication information for acquiring the demodulation reference signal in each downlink control channel resource set, for example, may be an indication of acquiring the demodulation reference signal sequence in each downlink control channel resource set. information.

In a third aspect, an embodiment of the present invention provides a terminal device, where the terminal device is configured to implement the function of the terminal device in the foregoing method, where the function may be implemented by using hardware or by executing corresponding software through hardware. Implementations, the hardware or software includes one or more modules corresponding to the functions described above.

In one possible design, the structure of the network device includes a receiver and a processor configured to support the terminal device to perform corresponding functions in the above methods. The receiver is configured to support communication between the terminal device and the network device, and the receiving network device sends information or instructions involved in the foregoing method. The terminal device may also include a memory for coupling with the processor, which stores program instructions and data necessary for the terminal device.

In a fourth aspect, an embodiment of the present invention provides a network device, where the network device has a function of implementing network device behavior in the foregoing method. The functions may be implemented by hardware or by corresponding software implemented by hardware. The hardware or software includes one or more modules corresponding to the functions described above.

In one possible design, the structure of the network device includes a processor and a transmitter configured to support the network device to perform the corresponding functions in the above methods. The transmitter is configured to support communication between the network device and the terminal device, and send information or instructions involved in the foregoing method to the terminal device. The network device can also include a memory for coupling with the processor that holds program instructions and data necessary for the network device.

In a fifth aspect, an embodiment of the present invention provides a communication system, where the system includes the network device and the terminal device in the foregoing aspect.

In a sixth aspect, an embodiment of the present invention provides a computer storage medium for storing computer software instructions for use in the network device, including a program designed to perform the above aspects.

In a seventh aspect, an embodiment of the present invention provides a computer storage medium for storing computer software instructions for use in the terminal device, which includes a program designed to perform the above aspects.

Compared with the prior art, the solution provided by the present invention can avoid the problem that the terminal device cannot obtain the changed sub-carrier spacing type in time due to the unsatisfactory update of the system message, thereby implementing dynamic indication of the sub-carrier spacing type change.

DRAWINGS

1 is a schematic diagram of a possible application scenario of the present invention;

2 is a schematic structural diagram of a time domain OFDM symbol length corresponding to different subcarrier spacings of the present invention;

3 is a schematic structural diagram of a semi-static configuration subcarrier spacing;

FIG. 4 is a schematic flowchart diagram of a method for determining a subcarrier spacing type according to an embodiment of the present disclosure;

FIG. 5 is a schematic structural diagram of another method for determining a seed carrier spacing type according to an embodiment of the present disclosure;

FIG. 6 is a schematic structural diagram of another method for determining a seed carrier spacing type according to an embodiment of the present disclosure;

FIG. 7 is a schematic structural diagram of another method for determining a seed carrier spacing type according to an embodiment of the present disclosure;

FIG. 8 is a schematic flowchart of a method for determining another seed carrier spacing type according to an embodiment of the present invention;

9-1 is a schematic flowchart of a method for determining another seed carrier spacing type according to an embodiment of the present invention;

9-2 is a schematic flowchart of a method for determining another seed carrier spacing type according to an embodiment of the present invention;

10-1 is a schematic flowchart of a method for determining another seed carrier interval type according to an embodiment of the present invention;

FIG. 10 is a schematic flowchart of a method for determining another seed carrier spacing type according to an embodiment of the present disclosure;

FIG. 11 is a schematic structural diagram of a terminal device according to an embodiment of the present disclosure;

FIG. 12 is a schematic structural diagram of another terminal device according to an embodiment of the present disclosure;

FIG. 13 is a schematic structural diagram of a network device according to an embodiment of the present disclosure;

FIG. 14 is a schematic structural diagram of another network device according to an embodiment of the present disclosure;

15 is a schematic structural diagram of a slot-based transmission;

Figure 16 is a schematic diagram of a structure based on a mini-slot transmission;

Figure 17-a1 is a schematic structural diagram of the terminal device supporting two transmission time intervals;

Figure 17-a2 is another schematic structural diagram of the terminal device supporting two transmission time intervals;

18 is another schematic structural diagram of a terminal device supporting two transmission time intervals;

19 is a schematic structural diagram of detecting, by a terminal device, downlink control information;

FIG. 20 is another schematic structural diagram of the terminal device detecting downlink control information.

detailed description

The network architecture and the service scenario described in the embodiments of the present invention are used to more clearly illustrate the technical solutions of the embodiments of the present invention, and do not constitute a limitation of the technical solutions provided by the embodiments of the present invention. The technical solutions provided by the embodiments of the present invention are equally applicable to similar technical problems.

As shown in FIG. 1, a Radio Access Network (RAN) node 110 provides service for at least one terminal device 120, and the RAN node 110 has a control plane connection and a user with a Core Network (CN) 130. Face connection, where S1-U is used to represent the user plane connection, and S1-C is used to represent the control plane connection. The wireless communication between the RAN node 110 and a terminal device 120 may use only one component carrier (CC) or use multiple component carriers, such as CC1 and CC2 as shown.

The technology described in the present invention can be applied to a Long Term Evolution (LTE) system, or other wireless communication systems using various radio access technologies, for example, using code division multiple access, frequency division multiple access, time division multiple access, A system of orthogonal frequency division multiple access, single carrier frequency division multiple access and other access technologies. In addition, it can also be applied to the subsequent evolution system using the LTE system, such as the fifth generation 5G system and the like. For the sake of clarity, only the LTE system is taken as an example here. In the LTE system, an Evolved Universal Terrestrial Radio Access Network (E-UTRAN) is used as the radio access network, and an Evolved Packet (Core, EPC for short) is used as the core network. The terminal device accesses the IMS network through E-UTRAN and EPC.

In the present application, the terminal device according to the embodiment of the present invention may be a device that provides voice and/or data connectivity to a user, a handheld device with a wireless connection function, or other processing device connected to a wireless modem. The wireless terminal can communicate with one or more core networks via a Radio Access Network (RAN), which can be a mobile terminal, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal. For example, it may be a portable, pocket, handheld, computer built-in or in-vehicle mobile device that exchanges language and/or data with a wireless access network. For example, personal communication service (PCS, Personal Communication Service) telephone, cordless telephone, Session Initiation Protocol (SIP) telephone, Wireless Local Loop (WLL) station, Personal Digital Assistant (PDA, Personal Digital Assistant), etc. . A wireless terminal may also be called a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, an access point, or an access point. Remote Terminal, Access Terminal, User Terminal, User Agent, User Device, or User Equipment.

In this application, the network device involved in the embodiment of the present invention may be a base station, or an access point, or may refer to a device in the access network that communicates with the wireless terminal through one or more sectors on the air interface. The base station can be used to convert the received air frame to the IP packet as a router between the wireless terminal and the rest of the access network, wherein the remainder of the access network can include an Internet Protocol (IP) network. The base station can also coordinate attribute management of the air interface. For example, the base station may be a gNB, a Transmission Reception Point (TRP), an evolved Node B (eNB), a Radio Network Controller (RNC), and a Node B (NB). Base Station Controller (BSC), Base Transceiver Station (BTS), home base station (for example, Home evolved NodeB, or Home Node B, HNB), BaseBand Unit (BBU), or Wifi access point (AP), etc., this application is not limited.

In the present application, "at least one" in the embodiments of the present invention refers to one or more, and other quantifiers are similar thereto. "and/or", describing the association relationship of the associated objects, indicating that there may be three kinds of relationships, for example, A and/or B, which may indicate that there are three cases where A exists separately, A and B exist at the same time, and B exists separately. The character "/" generally indicates that the contextual object is an "or" relationship.

In the present application, the term "associated" in the embodiment of the present invention may refer to the relationship between A and B, which may be that A and B have an association relationship, or A and B correspond to each other, or A and B form a correspondence table. , or other relationships that can be associated. For example, in the present invention, A may be at least one downlink control channel resource set, and B may be at least one subcarrier spacing type.

In LTE systems and future evolved systems, the terminal device can support multiple subcarrier spacing types, such as 15 kHz, 30 kHz, 60 kHz, 120 kHz, 240 kHz, and/or 480 kHz. In an orthogonal frequency duplex multiplexing (OFDM) system, the subcarrier spacing type is inversely proportional to the symbol length of OFDM, that is, the larger the subcarrier spacing, the shorter the OFDM symbol length. For example, in FIG. 2, the time length of one OFDM symbol corresponding to the subcarrier spacing of 15 kHz is four times the length of time corresponding to one OFDM symbol at a subcarrier spacing of 60 kHz.

In a serving cell, the length of time for one data transmission is one transmission time interval TTI, and one TTI may be 1 subframe (1 ms) or 1 slot. The slot may be a relative unit, that is, only the number of OFDM symbols included in the slot is defined. As shown in FIG. 2, one slot contains 7 OFDM symbols, and when the subcarrier spacing type is 15 kHz, the absolute of one slot is The length of time is 0.5 ms; when the subcarrier spacing type is 60 kHz, the absolute time length of one slot is 0.125 ms.

In a serving cell, different frequency ranges within the system bandwidth support different subcarrier spacing types. In the time domain, subcarrier spacing types in different frequency ranges of different frequency ranges may change. The network device notifies the terminal device of the change of the subcarrier spacing type through the broadcast system message. As shown in FIG. 3, f1 and f2 are two different frequency ranges. In the T1 time period, the subcarrier spacing type in the f1 is 15 kHz, after the update. After the system information is valid, the subcarrier spacing type becomes 60 kHz in the frequency range f1 in the T2 time period; the subcarrier spacing type is 60 kHz in the T1 time period in the frequency range f2, and the subcarrier spacing in the frequency range f2 after the updated system information is validated The type becomes 60kHz. The network device may also change only the subcarrier spacing type in a part of the frequency range. For example, at the end of the T1 time, that is, after the updated system information is valid, the duration length T3 of the subcarrier spacing of 15 kHz in the frequency range f2 may be greater than T2.

As shown in FIG. 3, at the time of T1, the terminal device needs to notify the terminal device of the updated subcarrier spacing type through the system message, but since the system message update is relatively slow, the network device can only use the 15 kHz terminal before the system message is sent. The device sends the service data, so that the terminal device cannot obtain the changed sub-carrier spacing type in time, and thus cannot meet the delay requirement of the terminal device service.

As described above, the embodiment of the present invention provides a method for determining a seed carrier interval type. The terminal device obtains a current downlink channel by detecting configuration information of a downlink control channel resource set associated with at least two subcarrier spacing types. The type of subcarrier spacing used during the transmission time interval.

Please refer to FIG. 4 , which is a schematic flowchart of a method for determining a subcarrier spacing according to an embodiment of the present application. As shown in FIG. 4, the method may include the following steps:

401. The network device determines first configuration information, where the first configuration information includes at least one downlink control channel resource set, where the at least one downlink control channel resource set is associated with at least two subcarrier spacing types; or the first configuration. The information includes at least two downlink control channel resource sets, each downlink control channel resource set is associated with at least one subcarrier interval type, wherein the downlink control channel resource set is used by the terminal device to send a downlink control channel, and the downlink control The channel is used to carry downlink control information.

Exemplarily, the first configuration information may be system information, or radio resource control RRC signaling, or other messages or signaling, which are not enumerated here, as long as the content included in the first configuration information can be included. It is within the scope of the invention to be protected.

Exemplarily, the at least one downlink control channel resource set is associated with the at least two subcarrier interval types, and may include any of the following conditions, for example:

One downlink control channel resource set is associated with two subcarrier spacing types; or two downlink control channel resource sets are associated with two subcarrier spacing types; or at least three downlink control channel resource sets and at least two subcarrier spacing types Associated (for example, if there are three downlink control channel resource sets, the first and second downlink control channel resource sets correspond to the first subcarrier interval type, the third downlink control channel resource set corresponds to the second subcarrier interval type, or the first The downlink control channel resource set corresponds to the first subcarrier spacing type, and the second and third downlink control channel resource sets correspond to the second subcarrier spacing type). Certainly, these examples are only for understanding the examples in the embodiments of the present application, and it is within the scope of the present application as long as at least one downlink control channel resource set is associated with at least two subcarrier spacing types.

Exemplarily, the first configuration information includes at least two downlink control channel resource sets, and each downlink control channel resource set is associated with at least one subcarrier spacing type, and may include any one of the following:

The first configuration information includes at least two downlink control channel resource sets, each downlink control channel resource set is associated with one subcarrier interval type, or the first configuration information includes multiple downlink control channel resource sets. A subset of the plurality of downlink control channel resource sets is associated with at least one subcarrier spacing type, and another partial set other than the portion is associated with at least one subcarrier spacing type other than the one subcarrier type. For example, the first configuration information includes five downlink control channel resource sets, and the first, second, and third downlink control channel resource sets correspond to a subcarrier spacing type of 15 kHz, and the fourth and fifth downlink control channel resource sets. The corresponding subcarrier spacing type is 60 kHz. For another example, the first configuration information includes three downlink control channel resource sets, and the subcarrier spacing types corresponding to the first and second downlink control channel resource sets are 15 kHz and 30 kHz, respectively, and the third downlink control channel resource set The corresponding subcarrier spacing type is 60 kHz. The examples are only for understanding the examples in the embodiments of the present application, as long as the first configuration information includes at least two downlink control channel resource sets, and each downlink control channel resource set is associated with at least one subcarrier spacing type. All belong to the scope of protection of this application.

For example, the first configuration information further includes reference time period indication information, configured to instruct the terminal device to perform the at least one detection on the downlink control information in the reference time period.

For example, the first configuration information further includes reference subcarrier spacing type indication information, and is used to indicate that the terminal device performs at least one detection on the downlink control channel within a time corresponding to the reference subcarrier spacing type.

Exemplarily, the receiving, by the terminal device, the first configuration information sent by the network device includes the following at least one indication information:

The indication information for obtaining the quantity of resources occupied by the data of the associated scheduling in the downlink control channel resource set in the transmission time domain, for example, may be the downlink control channel scheduling data sent in the downlink control channel resource set, where the data is The indication of the duration duration, for example, the number of OFDM symbols occupied by the duration, or the number of slots, or the number of subframes, etc.; or

The indication information for acquiring the quantity of resources included in the frequency domain of each downlink control channel resource set may be, for example, indication information of the number of physical resource blocks included in the frequency, and may be, for example, a resource block included in the frequency. The number of groups and the indication that each resource block group contains several resource blocks; or

The indication information for acquiring the quantity of resources included in the time domain resource of each downlink control channel resource set may be, for example, the number of OFDM symbols occupied by each downlink control channel resource set in time; or

The indication information used to obtain the frequency range within the system bandwidth of each downlink control channel resource set frequency domain may be, for example, a resource block or a resource block included in a frequency domain of each downlink control channel resource set within the system bandwidth. Indicates information such as the scope of the index or index of the group; or

The indication information used to obtain the demodulation reference signal in each downlink control channel resource set may be, for example, the indication information of acquiring the demodulation reference signal sequence in each downlink control channel resource set.

402. The network device sends the first configuration information to a terminal device.

403. The terminal device receives the first configuration information.

404. The terminal device detects the downlink control channel, and acquires a first subcarrier spacing type associated with the downlink control channel resource set where the downlink control channel is located.

For example, in the first configuration information received by the terminal device, the at least one downlink control channel resource set is associated with at least two subcarrier spacing types, and the terminal device is in each of the first configuration information. The downlink control channel is detected in the downlink control channel resource set, and the subcarrier spacing type associated with the downlink control channel resource set in which the downlink control channel is located is obtained. For example, the first configuration information sent by the network device includes two downlink control channel resource sets. As shown in FIG. 5, the subcarrier spacing type corresponding to the lower control channel resource set 1 is 15 kHz, and the downlink control channel resource set 2 corresponds to the sub-carrier. The carrier interval type is 60 kHz, and the terminal device detects the downlink control channel in each downlink control channel resource set. If the terminal device detects the downlink control information in the downlink control channel resource set 1, the network device uses the 15 kHz subcarrier interval to send the downlink. Control channel, and/or, if the terminal device detects downlink control information in the downlink control channel resource set 2, the network device transmits the downlink control channel using the 60 kHz subcarrier interval at this time.

For example, as shown in FIG. 6, the first configuration information further includes reference time period indication information, which is used to instruct the terminal device to perform the at least one detection on the downlink control information in the reference time period.

For example, in the embodiment shown in FIG. 6, the reference time period indication information is assumed to be 10 ms, and at 10 ms (the downlink control resource set 1 in FIG. 6), the terminal device performs at least one detection on the downlink control channel. And acquiring information about a subcarrier spacing type corresponding to the downlink control channel resource set where the downlink control channel is located. For example, the first configuration information includes two downlink control channel resource sets, the subcarrier spacing type corresponding to the downlink control channel resource set 1 is 15 kHz, and the subcarrier spacing type corresponding to the downlink control channel resource set 2 is 60 kHz. The terminal device detects the downlink control channel according to 15 kHz and 60 kHz respectively. If the downlink control information is successfully detected according to 15 kHz within 10 ms, the subcarrier spacing type of the terminal device is 15 kHz, that is, the network device sends the terminal device to the terminal device. Both the downlink data and the uplink data transmitted by the terminal device use a subcarrier spacing of 15 kHz. The terminal device detects the downlink control channel within the indicated time, which can reduce the number of times the terminal device detects the downlink control information.

For example, during the reference time period, the type of subcarrier spacing used for transmitting the downlink control channel may change. Therefore, the terminal device needs to detect at least one downlink control channel to obtain the latest subcarrier spacing type used when transmitting the downlink control channel. . That is to say, the terminal device needs to detect the downlink control channel at least once, and determines the subcarrier spacing used by the current network device to send the downlink control channel according to the type of the subcarrier that may be used by the downlink control channel.

For another example, during the reference time period, the terminal device may detect the downlink control channel more than once to determine whether the network device sends downlink control information.

It should be noted that the terminal device detects which subcarrier spacing type is detected by the downlink control channel, and this hypothesis test is performed at least once in the reference time period.

For example, the first configuration information further includes reference subcarrier spacing type indication information, and is used to indicate that the terminal device performs at least one detection on the downlink control channel within a time corresponding to the reference subcarrier spacing type. As shown in FIG. 7, the subcarrier spacing type is 15 kHz, and the time corresponding to 15 kHz is one slot, that is, includes 7 OFDM symbols, and the terminal device is at the starting point of each slot (as shown in FIG. 7 for the downlink control resource set 1). At least one detection of the downlink control channel is started. Similar to the embodiment shown in FIG. 6, the terminal device uses the subcarrier spacing type to detect the downlink control information, and the terminal device can work at the subcarrier spacing. Mode. The terminal device detects the downlink control channel in the time indicated by the subcarrier spacing type, thereby reducing the number of times the terminal device detects the downlink control information.

Exemplarily, the terminal device receives the second configuration information that is sent by the network device, where the second configuration information further includes indication information of the effective time length of the sub-carrier interval type, and is used to indicate that the terminal device is within the effective time length. The downlink control channel performs at least one detection. For example, the indication information of the length of the sub-carrier interval effective time may be carried in the downlink control information, where the effective time may be 1/2, 1/4 of the reference cycle time, 2 times the reference time, and 4 times of the reference time. Times or infinity, etc. For example, in FIG. 7, when the subcarrier spacing type is 60 kHz, the subcarrier spacing effective time length (N) is 1/2 of the reference cycle time, indicating that the terminal device needs to detect two downlink control channels during the reference time, and the monitor Whether the carrier spacing changes. For example, when the subcarrier interval effective time length (N) is infinite, the terminal device does not need to detect the subcarrier spacing change again. By default, the same subcarrier spacing type as the downlink control channel carrying the downlink control information is always used. The terminal device detects the downlink control channel within the effective time length, thereby reducing the number of times the terminal device detects the downlink control information. For example, the second configuration information may be downlink control information or other configuration information.

The terminal device receives the at least two subcarrier spacing types configured by the network device, and obtains the subcarrier spacing type information corresponding to the downlink control channel by detecting the downlink control channel, so as to prevent the terminal device from being unable to obtain the changed time in time due to the system message update failure. The problem of the subcarrier spacing type, in turn, dynamically indicates that the subcarrier spacing type changes.

803, 804, 805, and 806 in the embodiment shown in FIG. 8 are similar to 401, 402, 403, and 404 in the embodiment shown in FIG. 4, except that before the network device determines the configuration information, FIG. 8 The illustrated embodiment further includes:

801. The terminal device reports, to the network device, a subcarrier type supported by the terminal device.

Exemplarily, the terminal device may directly report the type of subcarrier spacing supported by the network device to the network device, for example, the supported subcarrier spacing types are 15 kHz and 60 kHz.

Exemplarily, the terminal device may report the type of the sub-carrier interval to the network-side device, for example, the terminal device reports the service type supported by the device to the network device, such as eMBB and URLLC. The network device determines, by using the eMBB and URLLC service types, that the terminal device supports multiple subcarrier spacing types of 15 kHz and 30/60 kHz.

For example, the network device may also be configured in advance or by using a protocol to support the terminal device to support at least one type of subcarrier spacing. In this case, the terminal device only needs to report the network device to the at least one subcarrier spacing type. Other subcarrier spacing types.

802. The network device sends, to the terminal device, first indication information, where the indication information is used to indicate a type of subcarrier spacing supported in a serving cell system bandwidth.

Exemplarily, one or more subcarrier spacing types are supported by default in the serving cell system bandwidth before the network device sends the first indication information to the terminal device.

Exemplarily, the first indication information is used to indicate a supported subcarrier spacing type in a certain frequency range within the serving cell system bandwidth.

Exemplarily, before the network device sends the first indication information to the terminal device, the supported subcarrier spacing type in a certain frequency range within the serving cell system bandwidth is defaulted. For example, the carrier center defaults to a subcarrier spacing type of 15 kHz in the frequency range containing the synchronization signal, or uses the same subcarrier spacing type as the synchronization signal.

Exemplarily, the first indication information may be cell-specific, for example, carried in a physical broadcast control channel (PBCH) or a system information block (SIB).

Exemplarily, the first indication information may be terminal device specific or terminal device group specific, for example, carried in radio resource control (RRC) signaling.

It should be noted that the network device can support multiple serving cells at the same time, and the corresponding indication information is sent for each serving cell, or an indication information can be used to indicate multiple serving cells.

The terminal device reports the supported subcarrier spacing type, so that the network device needs to configure the associated subcarrier type for the terminal device before configuring the subcarrier spacing type associated with the downlink control channel resource set to the terminal device. The associated subcarrier spacing types configured by different terminal devices may be different.

For the beneficial effects of this embodiment, please refer to the embodiment shown in FIG. 4, and details are not described herein again.

It should be particularly noted that the embodiment shown in FIG. 9-1 is similar to the embodiment shown in FIG. 4. The embodiment shown in FIG. 9-2 is similar to the embodiment shown in FIG. After the carrier spacing type, 9a and/or 9b are also included, wherein 9a and/or 9b include:

9a. The terminal device determines that a second subcarrier spacing type used to receive downlink data is the same as a first subcarrier spacing type used by the terminal device to detect downlink control information in the downlink control channel resource set. The terminal device receives the downlink data by using the second subcarrier spacing type; and/or

9b. The terminal device determines a second subcarrier spacing type used by the terminal device to send uplink data, and a first subcarrier spacing used by the terminal device to detect a downlink control channel in the downlink control channel resource set. The type is the same, and the terminal device transmits the uplink data by using the second subcarrier spacing type.

Using the method of FIG. 9-1, the second subcarrier spacing type used for receiving downlink data and transmitting uplink data and/or uplink control information may be different from the first subcarrier spacing type used for transmitting the downlink control channel, so that the data is more capable. Suitable for current business situations.

Using the method of Figure 9-2, the terminal reports the supported subcarrier spacing type, so that when the network device configures the subcarrier spacing type associated with the downlink control channel resource set for the terminal device, it knows which subcarrier type is associated with the terminal device configuration. The associated subcarrier spacing types of different terminal devices may be different.

It should be particularly noted that the embodiment shown in FIG. 10-1 is similar to the embodiment shown in FIG. 4. The embodiment shown in FIG. 10-2 is similar to the embodiment shown in FIG. 8, except that the identifier is determined. After the carrier spacing type, 10a and 10b are also included, wherein 10a and 10b include:

10: The terminal device acquires, by using the downlink control channel, a second subcarrier spacing type in the downlink control information.

10b. The terminal device receives the downlink data and/or sends the uplink data by using the second subcarrier spacing type.

With the scheme of FIG. 10-1, the second subcarrier spacing type used by the terminal device to receive downlink data and transmit uplink data and/or uplink control information may be different from the first subcarrier spacing type used for transmitting the downlink control channel, so that the data is more Can adapt to the current business situation.

With the scheme of FIG. 10-2, the terminal reports the supported subcarrier spacing type, so that when the network device configures the subcarrier spacing type associated with the downlink control channel resource set for the terminal device, it is known which subcarrier type is associated with the terminal device configuration. . The associated subcarrier spacing types of different terminal devices may be different.

The solution provided by the embodiment of the present invention is mainly introduced from the perspective of interaction between the network elements. It can be understood that each network element, such as a terminal device or a network device, etc., in order to implement the above functions, includes hardware structures and/or software modules corresponding to the execution of the respective functions. Those skilled in the art will readily appreciate that the present invention can be implemented in a combination of hardware or hardware and computer software in combination with the elements and algorithm steps of the various examples described in the embodiments disclosed herein. Whether a function is implemented in hardware or computer software to drive hardware depends on the specific application and design constraints of the solution. A skilled person can use different methods for each particular application to implement the described functionality, but such implementation should not be considered to be beyond the scope of the present invention.

FIG. 11 is a schematic diagram of a possible structure of a terminal device involved in the foregoing embodiment, where the terminal device is used to implement the behavior of the terminal device in the foregoing method embodiment, including:

The receiving module 1101 is configured to receive first configuration information that is sent by the network device, where the first configuration information includes at least one downlink control channel resource set, and the downlink control channel resource set is used to send a downlink control channel, where the downlink control channel is For carrying downlink control information, where the at least one downlink control channel resource set is associated with at least two subcarrier spacing types; or the first configuration information includes at least two downlink control channel resource sets, each downlink control The channel resource set is associated with at least one subcarrier spacing type;

The processing module 1102 is configured to detect the downlink control channel, and acquire a first subcarrier spacing type associated with the downlink control channel resource set where the downlink control channel is located.

It should be noted that, as shown in FIG. 12, the physical device corresponding to the processing module shown in FIG. 11 is the processor 1202, and the physical device corresponding to the receiving module is the receiver 1201. Further, the real device may further include a memory 1203. The memory 1203 is used to store program codes and data of the terminal device.

FIG. 13 is a schematic diagram of a possible structure of a network device involved in the foregoing embodiment, where the network device has the function of implementing the behavior of the network device in the foregoing method, including:

The processing module 1301 is configured to determine first configuration information, where the first configuration information includes at least one downlink control channel resource set, and the at least one downlink control channel resource set is associated with at least two subcarrier spacing types; or The first configuration information includes at least two downlink control channel resource sets, and each downlink control channel resource set is associated with at least one subcarrier interval type, where the downlink control channel resource set is used to send a downlink control channel to the terminal device, The downlink control channel is configured to carry downlink control information;

The sending module 1302 is configured to send, to the terminal device, configuration information determined by the determining module 1301.

It should be noted that, as shown in FIG. 14 , the physical device corresponding to the sending module 1301 shown in FIG. 13 is the transmitter 1401 , and the physical device corresponding to the sending module 1302 is the receiver 1402 . Further, the package further includes a memory 1403 for storing program codes and data of the network device.

For the beneficial effects of the foregoing device embodiments, refer to the beneficial effects of the corresponding method embodiments, and details are not described herein again.

When the terminal device supports at least two transmission time intervals, for example, an evolved mobile broadband (eMBB) service is carried over a transmission time interval, and an ultra-reliable low latency communication (URLLC) service is used. The bearer is carried in another transmission time interval, and the terminal device needs to perform multiple detections on the downlink control channel by using different transmission time intervals, but the complexity of the detection is relatively high.

For the convenience of the description, the first transmission time interval carries the eMBB service as an example, and the second transmission time interval carries the URLLC service as an example. The description is merely an example of the present invention, and the present invention includes but is not limited to this.

For example, in a transmission time interval of a serving cell, data transmission is performed once. Therefore, it can be understood that a terminal device supporting both the eMBB service and the URLLC service needs to support two lengths of transmission time intervals. 15 is a slot-based transmission, that is, data mapping is performed on a resource unit other than a resource unit such as a downlink control channel and a reference signal in one slot. Figure 16 is based on a mini-slot transmission in which data mapping is performed on resource elements other than resource elements such as downlink control channels and reference signals within a mini-slot. The number of OFDM symbols included in the Mini-slot is smaller than the number of OFDM symbols included in the Slot. The minimum length of the Mini-slot may be 1 OFDM symbol, and the maximum length of the OFDM symbol included in 1 slot is reduced by 1, as shown in FIG. 16 . The mini-slot in the medium contains 4 OFDM symbols, and the number of OFDM symbols included in the mini-slot can be included in the configuration information sent by the network device to the terminal device. It should be noted that FIG. 15 and FIG. 16 are only examples for understanding the embodiments of the present invention. As long as the terminal device can support at least two different transmission time intervals, it belongs to the scope to be protected by the present invention. Make specific limits.

Since the eMBB service type and the URLLC service type are different, the amount of data of the eMBB service is large, and more data needs to be scheduled for each scheduling; and the amount of data of the URLLC is small, and less data needs to be scheduled for each scheduling. Therefore, the eMBB service and the URLLC service respectively correspond to transmission time intervals of different lengths of time. For a terminal device that supports both the eMBB service and the URLLC service, the network device configures a downlink control channel resource set for detecting a transmission time interval corresponding to the eMBB service, and also configures a downlink control channel resource set for detecting a transmission time interval corresponding to the URLLC service. The terminal device needs to detect the downlink control channel according to the downlink control channel resource set of different transmission time intervals, so that the complexity of the downlink control channel detection is increased.

An embodiment of the present invention provides a detection method, where a terminal device receives configuration information sent by a network device, where the configuration information includes at least two transmission time intervals, where each transmission time interval corresponds to at least one service, and the terminal device And detecting, according to the minimum transmission time interval of the at least two transmission time intervals, the downlink control channel, and after successfully detecting the downlink control information, acquiring indication information of the transmission time interval type, according to the indication of the transmission time interval type The information obtains the amount of resources occupied by the data scheduled by the downlink control information.

Exemplarily, the indication information of the transmission time interval type indicates a type of transmission time interval and/or a number of OFDM symbols included in each transmission time interval, and the data map includes OFDM symbols in the transmission time interval except the downlink control channel resource set. And on the resource unit other than the reference signal.

For example, after the terminal device successfully detects the downlink control information, the transmission time interval may be obtained by using the corresponding relationship, where the correspondence relationship is the correspondence between the transmission time interval and the downlink control information format corresponding to scheduling the transmission time interval.

For example, after the terminal device successfully detects the downlink control information, the transmission time interval can be obtained by the correspondence between the transmission time interval and the radio network temporary identifier (RNTI).

For example, after the terminal device successfully detects the downlink control information, the transmission time interval may be obtained by the correspondence between the downlink control channel resource set and the transmission time interval.

For example, after the terminal device successfully detects the downlink control information, the terminal can obtain the transmission time interval by using the correspondence between the downlink control channel search space and the transmission time interval.

For example, after the terminal device successfully detects the downlink control information, the mapping between the downlink control channel format and the transmission time interval may be adopted. For example, the downlink control channel format may be an aggregation level used.

In a possible implementation manner, the format of the corresponding downlink control information is different because the transmission time interval is different. When the terminal device detects the downlink control information, the format of the downlink control information is obtained, so that the transmission time interval is implicitly known. The number of resources occupied by the data scheduled by the downlink control channel is obtained.

For example, the terminal device supports two transmission time intervals, C and D, respectively, where C is greater than D. The format of the downlink control information corresponding to different transmission time intervals is different. Therefore, when the transmission time interval is C, the downlink control information format used when scheduling the data of the transmission time interval is A; when the transmission time interval is D The downlink control information format used for scheduling the data of the transmission time interval is B. When the terminal device detects that the downlink control information is the downlink control information format B in the downlink control channel resource, the terminal device acquires the downlink control information. The transmission time interval corresponding to the data scheduled by the downlink control channel is D, and the data mapping is performed on D other resource units except the downlink control channel resource set and the reference signal. If the detected downlink control information is the downlink control information format A, the transmission time interval corresponding to the data scheduled by the terminal device acquiring the downlink control channel carrying the downlink control information is C, and the data mapping is divided into C in the downlink. Control channel resource sets and other resource elements other than the reference signal.

Specifically, as shown in the first case in FIG. 17-a1, the terminal device supports two transmission time intervals, for example, a slot and a mini-slot, respectively, and the format of the downlink control information corresponding to different transmission time intervals is different, for example, transmission. When the time interval is slot, the format of the downlink control information used when scheduling the data of the transmission time interval is A; when the transmission time interval is mini-slot, the format of the downlink control information used when scheduling the data of the transmission time interval is B, OS1 The downlink control channel resource set of the mini-slot, the terminal device detects the downlink control channel resource set on the symbol OS1, and if the detected downlink control information is the downlink control information format A, the terminal device acquires the downlink control The transmission time interval corresponding to the data scheduled by the information is slot, and the data mapping is in the slot other than the downlink control channel resource set and the reference signal, that is, in the 7 OFDM symbols included in the slot, except for the symbol OS1 and the reference. a resource unit other than the signal; if the detected downlink control information is the downlink control information format B, The transmission time interval corresponding to the data scheduled by the terminal device for acquiring the downlink control information is a mini-slot, and the data mapping is performed on a resource unit other than the downlink control channel resource set and the reference signal in the mini-slot, that is, The resource elements other than the symbol OS1 and the reference signal among the 2 OFDM symbols included in the mini-slot.

Specifically, as shown in case 2 in FIG. 17-a1, based on the description of case 1 in 17-a1, OS1 is a downlink control channel resource set of mini-slot, and the terminal device detects the downlink control channel on symbol OS1. If the detected downlink control information is the downlink control information format A, the transmission time interval corresponding to the data scheduled by the terminal device acquiring the downlink control information is slot, and the data mapping is in the slot except the downlink control channel resource set. And other resource units other than the reference signal, that is, resource elements other than the symbol OS1 and the reference signal among the 7 OFDM symbols included in the slot; if the detected downlink control information is the downlink control information format B, the terminal The transmission time interval corresponding to the data scheduled by the device to obtain the downlink control information is a mini-slot, and the data mapping is in the mini-slot except for the downlink control channel resource set and other resource units other than the reference signal, that is, in the mini-slot Among the 2 OFDM symbols included, other resource elements than the symbol OS1 and the reference signal.

Specifically, as shown in FIG. 17-a2, the transmission time interval corresponding to the data scheduled by the terminal device in the downlink control information detected by the OS3 is slot, and the data mapping is in the slot except the downlink control channel resource set and the reference signal. On the resource unit, that is, on the four symbols after OS3 in the slot, or the transmission time interval corresponding to the data scheduled by the downlink control information is mini-slot, the data mapping is in the mini-slot except the downlink control channel resource set. And other resource units other than the reference signal, that is, one symbol after OS3 in the mini-slot.

For example, the number of the downlink control information that is scheduled may be carried on a physical downlink shared channel (PDSCH) or a physical uplink shared channel (PUSCH).

In another possible implementation manner, after the downlink device successfully detects the downlink control information, the terminal device obtains the transmission time interval type by using the indication information included in the downlink control information. For example, the indication information may be a single bit. For example, when the bit is 1, the corresponding transmission time interval is M, and when the bit is 0, the corresponding transmission time interval is N, where N and M are different transmission time intervals.

It should be noted that the indication information indicates that 0 or 1 is only an example of the present invention, and the indication information may also be other identifiers, which are not described herein.

The embodiment of the invention provides a network device, which has the function of realizing the behavior of the network device in the actual detection method. The functions may be implemented by hardware or by corresponding software implemented by hardware. The hardware or software includes one or more modules corresponding to the functions described above.

In one possible design, the structure of the network device includes a processor and a transmitter, the processor being configured to support the network device to perform the corresponding function in the above detection method. The transmitter is configured to support communication between the network device and the terminal device, and send information or instructions involved in the foregoing detection method to the terminal device.

The embodiment of the invention provides a terminal device, which has the function of realizing the behavior of the terminal device in the design of the above detection method. The functions may be implemented by hardware or by corresponding software implemented by hardware. The hardware or software includes one or more modules corresponding to the functions described above. The modules can be software and/or hardware.

In a possible design, the structure of the terminal device includes a receiver and a processor, and the receiver is configured to support the terminal device to receive configuration information sent by the network device. The processor is configured to support the terminal device to perform a corresponding function in the foregoing detection method.

Illustratively, as shown in FIG. 18, the terminal device supports two transmission time intervals, such as slot and mini-slot, respectively. After the downlink control information is detected, the basic transmission time interval of the downlink control information indication data is obtained (for example, for the eMBB service, the basic transmission time interval is slot, and for the URLLC service, the basic transmission time interval is mini-slot). When the amount of service data is relatively large, the data that needs to be scheduled by using downlink control information is longer than the basic transmission time interval. Therefore, the downlink control information may include aggregation of multiple basic transmission time intervals, that is, several downlink control information are scheduled. Basic transmission time interval. However, when the data is scheduled during the aggregated transmission time interval, when no control signaling is transmitted in the downlink channel resource set in the aggregated transmission time interval, the resource in the downlink control channel resource set in the aggregated transmission time interval is wasted. .

In order to solve the above problem, the embodiment of the present invention provides a method for indicating downlink control information, including:

The indication information is included in the downlink control information, and is used to indicate whether the downlink control channel resource set in the aggregated transmission time interval is used to send data.

Exemplarily, when the indication information is bit 1, the downlink control channel resource set in the aggregated transmission time interval is used to send data; when the indication information is bit 0, it indicates in the aggregated transmission time interval. The downlink control channel resource set is not used for transmitting data, and the terminal device still needs to detect the downlink control channel in the downlink control channel resource set in the aggregated transmission time interval.

For example, as shown in FIG. 19, the terminal device detects downlink control information on the downlink control channel resource set of the slot n, and when the indication information of the downlink control information is 0, indicates downlink control in the aggregated transmission time interval. The channel resource set is not used to transmit data, that is, the symbols numbered 0 and 1 in each slot in FIG. 19 are not used to transmit data, and are used to detect the downlink control channel. For another example, as shown in FIG. 20, when the indication information of the downlink control information is bit 1, the downlink control channel resource set in the aggregated transmission time interval is used to send data, if the identifier is obtained on the symbol numbered 2 For the indication information, the data is transmitted with the symbols numbered 3, 4, 5 and 6.

When the indication information is included in the downlink control information, the indication information is used to indicate whether the downlink control channel resource set in the aggregated transmission time interval is used to send data, thereby avoiding waste of resources in the downlink control channel resource set, and at the same time, the terminal After obtaining the indication information, if the indication information indicates that the downlink control channel resource set in the aggregated transmission time interval is used to send data, the terminal device does not need to try to detect in the downlink control channel resource set in the aggregated transmission time interval. Downstream control channel to save power.

By detecting the indication method including the indication information in the downlink control information, the downlink control channel resource set of the terminal device in the aggregated transmission time interval still needs to detect the downlink control channel, so that the downlink control channel delivered by the network device can be quickly accepted, saving time. Delay, because it is not necessary to wait until the data is transmitted before detecting the downlink control channel.

The embodiment of the invention provides a network device, which has the function of realizing the behavior of the network device in the actual indication method. The functions may be implemented by hardware or by corresponding software implemented by hardware. The hardware or software includes one or more modules corresponding to the functions described above.

In one possible design, the structure of the network device includes a processor and a transmitter configured to support the network device to perform a corresponding function in the above indication method. The transmitter is configured to support communication between the network device and the terminal device, and send information or instructions involved in the foregoing indication method to the terminal device.

The embodiment of the invention provides a terminal device, which has the function of realizing the behavior of the terminal device in the design of the above indication method. The functions may be implemented by hardware or by corresponding software implemented by hardware. The hardware or software includes one or more modules corresponding to the functions described above. The modules can be software and/or hardware.

In a possible design, the structure of the terminal device includes a receiver and a processor, and the receiver is configured to support the terminal device to receive configuration information sent by the network device. The processor is configured to support the terminal device to perform a corresponding function of the indication method.

The processor for performing the above network device or terminal device of the present invention may be a central processing unit (CPU), a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), and a field programmable gate array (FPGA). Or other programmable logic device, transistor logic device, hardware component, or any combination thereof. It is possible to implement or carry out the various illustrative logical blocks, modules and circuits described in connection with the present disclosure. The processor may also be a combination of computing functions, for example, including one or more microprocessor combinations, a combination of a DSP and a microprocessor, and the like.

The steps of a method or algorithm described in connection with the present disclosure may be implemented in a hardware, or may be implemented by a processor executing software instructions. The software instructions may be comprised of corresponding software modules that may be stored in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable hard disk, CD-ROM, or any other form of storage well known in the art. In the medium. An exemplary storage medium is coupled to the processor to enable the processor to read information from, and write information to, the storage medium. Of course, the storage medium can also be an integral part of the processor. The processor and the storage medium can be located in an ASIC. Additionally, the ASIC can be located in the user equipment. Of course, the processor and the storage medium may also reside as discrete components in the user equipment.

Those skilled in the art will appreciate that in one or more examples described above, the functions described herein can be implemented in hardware, software, firmware, or any combination thereof. When implemented in software, the functions may be stored in a computer readable medium or transmitted as one or more instructions or code on a computer readable medium. Computer readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one location to another. A storage medium may be any available media that can be accessed by a general purpose or special purpose computer.

The specific embodiments of the present invention have been described in detail with reference to the preferred embodiments of the present invention. The scope of the protection, any modifications, equivalent substitutions, improvements, etc., which are made on the basis of the technical solutions of the present invention, are included in the scope of the present invention.

Claims

A method for determining a subcarrier spacing type, comprising:

The terminal device receives the first configuration information that is sent by the network device, where the first configuration information includes at least one downlink control channel resource set, the downlink control channel resource set is used to send a downlink control channel, and the downlink control channel is used to carry the downlink. Control information, wherein the at least one downlink control channel resource set is associated with at least two subcarrier spacing types; or the first configuration information includes at least two downlink control channel resource sets, each downlink control channel resource set and At least one subcarrier spacing type is associated;

The terminal device detects the downlink control channel, and acquires a first subcarrier spacing type associated with the downlink control channel resource set in which the downlink control channel is located.
The method according to claim 1, wherein the first configuration information further includes reference time period indication information, configured to indicate that the terminal device performs the downlink control channel at least once in the reference time period. Detection.
The method of claim 1 further comprising:

The terminal device receives the second configuration information that is sent by the network device, where the second configuration information further includes indication information of the effective time length of the sub-carrier interval type, and is used to indicate that the terminal device is in the effective time length The downlink control channel performs at least one detection.
The method according to any one of claims 1 to 3, wherein the method further comprises:

Determining, by the terminal device, a second subcarrier spacing type used for receiving downlink data, and a first subcarrier spacing type used by the terminal device to detect a downlink control channel in the downlink control channel resource set, the terminal The device receives the downlink data using the second subcarrier spacing type; and/or

Determining, by the terminal device, a second subcarrier spacing type used by the terminal device to send uplink data and/or uplink control information, and a second used by the terminal device to detect a downlink control channel in the downlink control channel resource set The one subcarrier spacing type is the same, and the terminal device sends the uplink data and/or the uplink control information by using the second subcarrier spacing type.
The method according to any one of claims 1 to 4, wherein the first configuration information further comprises at least one of the following indication information:

The indication information for acquiring the quantity of resources occupied by the associated scheduling data in each downlink control channel resource set in the sending time domain; or

And indication information for acquiring a demodulation reference signal in each downlink control channel resource set.
A detection method, comprising:

Receiving, by the terminal device, configuration information sent by the network device, where the configuration information includes at least two transmission time intervals;

The terminal device detects the downlink control channel according to a minimum transmission time interval of the at least two transmission time intervals;

After the terminal device successfully detects the downlink control information, the terminal device obtains the indication information of the transmission time interval type according to the corresponding relationship;

And obtaining, by the terminal device, the quantity of resources occupied by the downlink control information scheduling data according to the indication information of the transmission time interval type.
The method of claim 6 wherein the correspondence comprises:

Corresponding relationship between the transmission time interval and the downlink control information format corresponding to scheduling the transmission time interval; or

Correspondence between the downlink control channel resource set and the transmission time interval; or

Correspondence between the indication information included in the downlink control information and the type of the transmission time interval.
A method for indicating downlink control information, comprising:

The terminal device detects the downlink control information, where the downlink control information includes indication information, where the indication information is used to indicate whether the downlink control channel resource set in the aggregated transmission time interval is used to send data.

The terminal device receives data according to the indication information or detects a downlink control channel.
The indication method according to claim 8, wherein the detecting, by the terminal device, the downlink control channel according to the indication information comprises:

The terminal device detects the downlink control channel in the downlink control channel resource set in the aggregated transmission time interval according to the indication information.
A method for determining a subcarrier spacing type, comprising:

Determining, by the network device, the first configuration information, where the first configuration information includes at least one downlink control channel resource set, the at least one downlink control channel resource set is associated with at least two subcarrier spacing types; or the first configuration information Include at least two downlink control channel resource sets, each downlink control channel resource set being associated with at least one subcarrier spacing type;

The downlink control channel resource set is configured to send a downlink control channel to the terminal device, where the downlink control channel is used to carry downlink control information;

The network device sends the first configuration information to the terminal device.
The method according to claim 10, wherein the first configuration information determined by the network device further comprises reference time period indication information, configured to indicate that the terminal device controls the downlink in the reference time period The channel is tested at least once.
The method of claim 10, wherein the method further comprises:

The network device sends the second configuration information to the terminal device, where the second configuration information further includes indication information of the effective time length of the subcarrier spacing type, and is used to indicate that the terminal device is in the effective time The downlink control channel performs at least one detection.
The method according to any one of claims 10 to 12, wherein the method further comprises:

Receiving, by the network device, uplink data and/or uplink control information that is sent by the terminal device by using a second subcarrier spacing type, where the second carrier interval type is used by the network device to send the downlink control channel. The subcarrier spacing type is the same; and/or

The network device sends downlink data to the terminal device by using a second subcarrier spacing type, where the second subcarrier spacing type is the same as the first subcarrier spacing type used by the network device to send the downlink control channel. of.
The method according to any one of claims 10 to 13, wherein the downlink control information in the second configuration information further includes second subcarrier spacing type indication information, and the second subcarrier spacing type The indication information is used to indicate that the network device sends downlink data and/or receives a second subcarrier spacing type used by the terminal device to send uplink data and/or uplink control information.
A device for determining a subcarrier spacing type, comprising:

a receiving module, configured to receive first configuration information that is sent by the network device, where the first configuration information includes at least one downlink control channel resource set, and the at least one downlink control channel resource set is associated with at least two subcarrier spacing types; or The first configuration information includes at least two downlink control channel resource sets, each downlink control channel resource set is associated with at least one subcarrier interval type, where the downlink control channel resource set is used to send a downlink control channel, The downlink control channel is configured to carry downlink control information;

The processing module is configured to detect the downlink control channel, and acquire a first subcarrier spacing type associated with the downlink control channel resource set where the downlink control channel is located.
The device according to claim 15, wherein the first configuration information further includes reference time period indication information, configured to indicate that the terminal device performs the downlink control channel at least once in the reference time period. Detection.
The device according to claim 15, wherein the receiving module is further configured to:

And receiving, by the network device, second configuration information, where the second configuration information further includes indication information of an effective time length of the subcarrier spacing type, and is used to indicate that the terminal device is configured to the downlink control channel within the effective time length. Perform at least one test.
The apparatus according to any one of claims 15 to 17, wherein the receiving module is further configured to determine a second subcarrier spacing type used for receiving downlink data, and the terminal device detects the When the first subcarrier spacing type used by the downlink control channel in the downlink control channel resource set is the same, the downlink data is received by using the second subcarrier spacing type;

The apparatus further includes a transmitting module, configured to determine a second subcarrier spacing type used for transmitting uplink data and/or uplink control information, and a first used by detecting a downlink control channel in the downlink control channel resource set When the subcarrier spacing types are the same, the uplink data and/or uplink control information is sent using the second subcarrier spacing type.
The device according to any one of claims 15 to 18, wherein the determining module is further configured to acquire, by using the downlink control channel, second subcarrier spacing type indication information included in the downlink control information;

The receiving module is further configured to receive downlink data by using a second subcarrier spacing type indicated by the second subcarrier spacing type indication information; and/or

The sending module is further configured to send uplink data and/or uplink control information by using a second subcarrier spacing type indicated by the second subcarrier spacing type indication information.
A device for determining a subcarrier spacing type, comprising:

a processing module, configured to determine first configuration information, where the first configuration information includes at least one downlink control channel resource set, and the at least one downlink control channel resource set is associated with at least two subcarrier spacing types; or A configuration information includes at least two downlink control channel resource sets, each downlink control channel resource set being associated with at least one subcarrier spacing type, wherein the downlink control channel resource set is configured to send a downlink control channel to the terminal device, where The downlink control channel is configured to carry downlink control information;

And a sending module, configured to send, to the terminal device, the first configuration information that is determined by the processing module.
The device according to claim 20, wherein the first configuration information further includes reference time period indication information, configured to indicate that the terminal device performs the downlink control channel at least once in the reference time period. Detection.
The device according to claim 20, wherein the sending module is further configured to: send second configuration information to the terminal device, where the second configuration information further includes indication information of an effective time length of the subcarrier spacing type, And configured to instruct the terminal device to perform at least one detection on the downlink control channel within the effective time.
The device according to any one of claims 20 to 22, wherein the device further comprises:

a receiving module, configured to receive uplink data and/or uplink control information that is sent by the terminal device by using a second subcarrier spacing type, where the second carrier interval type is used by the downlink control channel sent by the sending module The first subcarrier spacing type is the same; and/or

The sending module is further configured to send downlink data to the terminal device by using a second subcarrier spacing type, where the second subcarrier spacing type is the first sub-subject used by the downlink control channel sent by the sending module. The carrier spacing type is the same.
The device according to claim 22, wherein the downlink control information in the second configuration information sent by the sending module further includes second subcarrier spacing type indication information, and the second subcarrier spacing type indication The information is used to indicate that the downlink data is sent and/or the second subcarrier spacing type used by the terminal device to send the uplink data and/or the uplink control information is received.
A detecting device, comprising:

a unit for receiving configuration information sent by a network device, where the configuration information includes at least two transmission time intervals;

Means for detecting a downlink control channel according to a minimum transmission time interval of the at least two transmission time intervals;

a unit for acquiring indication information of a transmission time interval type according to a corresponding relationship after successfully detecting downlink control information;

And a unit for acquiring the quantity of resources occupied by the data scheduled by the downlink control information according to the indication information of the transmission time interval type.
The apparatus of claim 25 wherein said correspondence comprises:

Correspondence between the transmission time interval and the downlink control information format corresponding to the scheduled transmission time interval; or

Correspondence between the downlink control channel resource set and the transmission time interval; or

Correspondence between the indication information of the downlink control information and the type of the transmission time interval.
A device for indicating downlink control information, comprising:

a unit for detecting downlink control information, where the downlink control information includes indication information, where the indication information is used to indicate whether a downlink control channel resource set in an aggregated transmission time interval is used to send data;

Means for receiving data according to the indication information; or means for detecting a downlink control channel according to the indication information.
The apparatus according to claim 27, wherein the means for detecting a downlink control channel according to the indication information is specifically used in a downlink control channel resource set in an aggregated transmission time interval according to the indication information. Detecting the downlink control channel.
A computer readable storage medium having stored therein instructions that, when executed on a computer, cause the computer to perform the method of any of claims 1 to 5.
A computer readable storage medium having stored therein instructions that, when executed on a computer, cause the computer to perform the method of claim 6 or 7.
A computer readable storage medium having stored therein instructions that, when executed on a computer, cause the computer to perform the method of claim 8 or 9.